Hisashi Iwakuma, Satoshi Nagai, Shinichiro Koyama, and Hiroki Yamamura will be getting their bodies checked out at a hospital in Chiba. This isn't necessarily about finding injuries, but rather preventing future injuries (or improving current injuries) by checking to see how much strain / exhaustion their bodies built up over the season and figuring out ways to help "reset" their bodies for the next season.